ComponentFactory.Krypton.Toolkit.RenderStandard.GetBorderDisplayPadding C# (CSharp) Method

        public override Padding GetBorderDisplayPadding(IPaletteBorder palette,
                                                        PaletteState state,
                                                        VisualOrientation orientation)
        {
            Debug.Assert(palette != null);

            // Validate parameter reference
            if (palette == null) throw new ArgumentNullException("palette");

            PaletteDrawBorders borders = palette.GetBorderDrawBorders(state);

            // If there is at least one border to be drawn
            if (CommonHelper.HasABorder(borders))
            {
                int borderWidth = palette.GetBorderWidth(state);

                // Divide the rounding effect by PI to get the actual pixel distance needed
                // for offseting. But add 2 so it starts indenting on a rounding of just 1.
                int roundPadding = Convert.ToInt16((palette.GetBorderRounding(state) + borderWidth + 2) / Math.PI);

                // If not involving rounding then padding for an edge is just the border width
                int squarePadding = borderWidth;

                // Borders thicker than 1 need extra offsetting, by half the extra width
                if (borderWidth > 1)
                {
                    int halfExtra = borderWidth / 2;
                    roundPadding += halfExtra;
                }

                // Enforce the width of the border as the minimum to ensure
                // it still works as expected for small values of rounding
                if (roundPadding < borderWidth)
                    roundPadding = borderWidth;

                switch (borders)
                {
                    case PaletteDrawBorders.Bottom:
                        return new Padding(0, 0, 0, squarePadding);
                    case PaletteDrawBorders.BottomLeft:
                        return new Padding(roundPadding, 0, 0, roundPadding);
                    case PaletteDrawBorders.BottomLeftRight:
                        return new Padding(roundPadding, 0, roundPadding, roundPadding);
                    case PaletteDrawBorders.BottomRight:
                        return new Padding(0, 0, roundPadding, roundPadding);
                    case PaletteDrawBorders.Left:
                        return new Padding(squarePadding, 0, 0, 0);
                    case PaletteDrawBorders.LeftRight:
                        return new Padding(squarePadding, 0, squarePadding, 0);
                    case PaletteDrawBorders.Top:
                        return new Padding(0, squarePadding, 0, 0);
                    case PaletteDrawBorders.Right:
                        return new Padding(0, 0, squarePadding, 0);
                    case PaletteDrawBorders.TopBottom:
                        return new Padding(0, squarePadding, 0, squarePadding);
                    case PaletteDrawBorders.TopBottomLeft:
                        return new Padding(roundPadding, roundPadding, 0, roundPadding);
                    case PaletteDrawBorders.TopBottomRight:
                        return new Padding(0, roundPadding, roundPadding, roundPadding);
                    case PaletteDrawBorders.TopLeft:
                        return new Padding(roundPadding, roundPadding, 0, 0);
                    case PaletteDrawBorders.TopLeftRight:
                        return new Padding(roundPadding, roundPadding, roundPadding, 0);
                    case PaletteDrawBorders.TopRight:
                        return new Padding(0, roundPadding, roundPadding, 0);
                    case PaletteDrawBorders.All:
                        return new Padding(roundPadding);
                    default:
                        // Should never happen!
                        Debug.Assert(false);
                        return Padding.Empty;
                }
            }
            else
                return Padding.Empty;
        }